Math 4 Changes for 2007-2008

The placement of many problems has changed. Those that moved to a different page are identified below.
002#05 reworded; formerly #08.
003#01 formerly #07.
003#05 calculator exclusion added; formerly #04.
004#01 reworded, formerly #05.
004#06 formerly 003#05.
005#07 formerly #04.
005#10 reworded.
006#01 expanded version of old 004#06.
006#02 new question.
006#06 changed the names of the functions.
006#11 made the description match the figure.
006#12 formerly 007#02.
007#01 formerly 006#11.
007#03 formerly 006#01.
007#08 changed "better" to "best".
008#05 imposed calculator restriction.
009#04 the date has been changed.
009#07 a new question.
011#10 the dash has been replaced by a semicolon.
012#11 a new question.
013#07 new question; expanded old version to four parts.
014#11 formerly 018#03.
015#02 now asks for the range of sums.
015#09 replaced "recall" by "by the way".
016#01 new question.
016#12 new question.
017#10 formerly 18#01.
017#11 new question.
018#10 new question.
018#11 formerly 023#01.
019#01 new question.
020#10 new question.
022#01 the y-axis is now in the diagram; replaced "successors" by "continuations".
022#04 replaced "equals" by "=".
022#08 added an exponent.
023#01 provided a hint.
024#08 new question.
024#09 new question.
024#10 new question.
025#01 new question.
025#02 new question; borrows from old 030#06.
025#05 formerly 024#08.
025#06 reworded.
026#01 reworded; now has five bullets.
026#02 new question.
027#02 trimmed-down version of old #06.
027#05 reworded; student now asked to put data into a table.
027#06 formerly 028#03.
028#01 formerly 027#02.
028#02 replaced x(t) by x=f(t).
028#03 continued previous labeling.
029#01 former 028#08; expanded what "algebra" means; rearranged definition of R(x).
029#04 reworded.
029#06 reworded.
029#07 new question.
030#02 reworded.
030#11 formerly 029#07.
031#07 replaced "x+k" by "x-h".
032#10 now includes some guidance for the "inspection".
033#07 expanded version now has three parts.
034#01 formerly 033#10.
037#09 new question.
038#04 now has some guidance.
039#04 put last two parts first.
040#04 new question.
040#07 moved down the page from #04.
042#08 formerly 044#04.
043#01 changed labels on points.
043#02 and 043#03 formerly 044#01 and 044#02.
044#01 new question.
044#03 moved down the page a bit.
044#04 and 044#04 formerly 045#02 and 045#03.
045#06 trimmed-down version of former 046#02.
045#07 formerly 046#03.
046#02 and 046#03 formerly 047#01 and 047#02.
046#05 formerly 047#04.
046#06 new follow-up question.
046#07 formerly 047#09.
047#06 formerly 050#03.
048#05 new question.
049#08 new question.
050#01 formerly 049#11.
050#07 and 050#08 formerly 051#01 and 051#02.
051#07 formerly 052#01.
052#07 formerly 057#02.
054#04 new follow-up question.
056#07 formerly 059#05.
057#01 reduced the number of sigmas, and wrote in the invisible unit multipliers.
057#05 reworded; more guidance; final question saved for next page.
057#06 formerly 059#06.
057#07 expanded version of old 058#04.
058#05 formerly at the tail end of 057#06.
058#06 formerly 059#01.
059#01 expanded; introduces displacement-distance distinction.
059#04 formerly 058#03.
059#05 expanded a bit; suggests a way of checking an answer.
059#07 formerly 055#07.
060#01 reworded and titled; put the deltas last; displayed the definition.
060#02 reworded and titled; moved the evaluation notation from old 066#04.
060#03 new question.
060#07 formerly 061#02.
061#04 added to the question.
061#08 formerly 062#02.
062#07 rewritten.
062#08 combines the former 063#01 and 063#02.
062#09 formerly 063#03.
063#01 revised the second sentence.
063#07 through 063#09 formerly at the top of 064.
064#06 and 064#07 formerly 065#02 and 065#01.
065#01 - 065#03 formerly 060#03 - 060#05; now sets a "simplify" challenge.
065#07 replaced "of gravity" by "due to gravity".
066#01 rewritten.
066#02 rewritten.
066#03 rewritten.
066#04 no longer defines notation.
066#07 formerly 067#01; a new limit of integration.
067#01 new question.
067#05 formerly 064#07.
067#10 new question.
068#01 formerly 073#01.
068#03 new slope-field introduction.
068#08 added a question at the end.
069#01 formerly 068#08.
069#02 formerly 068#02.
070#03 new question.
070#06 and 070#07 formerly 071#01 and 071#02. 
071#01 through 071#05 were formerly on page 070.
072#01 through 072#05 were formerly on page 071.
073#01 through 073#05 were formerly on page 072.
075#01 formerly 073#07.
076#09 formerly 073#06.
077#07 revised, to get the sharpest possible statement.
079#02 fixed typo in part c.
079#06 fixed typo.
084#03 fixed f <--> g mixup.
087#01 added a remark.
090#05 added a remark.
099#02 added a remark.
106#03 changed "auxiliary" to "gap" and explained why.
107#01 changed "auxiliary" to "gap" and explained why.
117#01 fixed exponent typo.


deleted old 018#04, 023#08, 025#06, 025#07, 026#01, 029#10.
added to reference section: "asteroid", "fundamental theorem of algebra", "law of cosines", "logarithmic derivative", "root", "double root", and a diagram to illustrate Snell's Law (as in Math 3).